It seems this change was made after the latest 0.91.2 release. I don't
know of any maintenance releases planned in the near future, but John
and Charlie would know better than I.
The changeset in question is r4874:
http://matplotlib.svn.sourceforge.net/viewvc/matplotlib?view=rev&revision=4874
I found this subject in the archives:
http://news.gmane.org/find-root.php?message_id=%3c88e473830801162014h2401e19en166daebe0d7b3ed7%40mail.gmail.com%3e
We at Enthought are looking at packaging up a new release of matplotlib early
next week (or sooner). I would like the new release to have the f